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Langfuse

Open source LLM engineering platform. Debug, analyze and iterate together.
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Langfuse is an open source LLM engineering platform. It helps teams collaboratively develop, monitor, evaluate, and debug AI applications. Langfuse can be self-hosted in minutes and is battle-tested.

Langfuse Overview Video

Learn more

See the langfuse/langfuse readme and docs for more details.

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  1. langfuse langfuse Public

    🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

    TypeScript 22.1k 2.2k

  2. langfuse-docs langfuse-docs Public

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    MDX 173 182

Repositories

Showing 10 of 18 repositories
  • langfuse Public

    🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

    langfuse/langfuse’s past year of commit activity
    TypeScript 22,073 2,192 318 (3 issues need help) 219 Updated Feb 19, 2026
  • langfuse-docs Public

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    langfuse/langfuse-docs’s past year of commit activity
    MDX 173 MIT 182 19 56 Updated Feb 19, 2026
  • langfuse-examples Public

    Examples on how to deploy and use Langfuse

    langfuse/langfuse-examples’s past year of commit activity
    TypeScript 21 MIT 12 2 4 Updated Feb 19, 2026
  • langfuse-python Public

    🪢 Langfuse Python SDK - Instrument your LLM app with decorators or low-level SDK and get detailed tracing/observability. Works with any LLM or framework

    langfuse/langfuse-python’s past year of commit activity
    Python 346 MIT 239 2 23 Updated Feb 19, 2026
  • langfuse-java Public

    🪢 Auto-generated Java Client for Langfuse API

    langfuse/langfuse-java’s past year of commit activity
    Java 47 MIT 8 6 2 Updated Feb 19, 2026
  • langfuse-cli Public

    use the langfuse API from your CLI

    langfuse/langfuse-cli’s past year of commit activity
    TypeScript 9 3 0 1 Updated Feb 18, 2026
  • langfuse-k8s Public

    Community-maintained Kubernetes config and Helm chart for Langfuse

    langfuse/langfuse-k8s’s past year of commit activity
    Go Template 217 MIT 127 28 12 Updated Feb 18, 2026
  • langfuse-js Public

    🪢 Langfuse JS/TS SDKs - Instrument your LLM app and get detailed tracing/observability. Works with any LLM or framework

    langfuse/langfuse-js’s past year of commit activity
    TypeScript 116 76 3 11 Updated Feb 18, 2026
  • skills Public

    Agent Skills for Langfuse, the open source LLM engineering platform for tracing, prompt management, and evaluation

    langfuse/skills’s past year of commit activity
    Python 10 MIT 1 1 0 Updated Feb 17, 2026
  • langfuse-terraform-aws Public

    🪢 Terraform module to deploy Langfuse on AWS

    langfuse/langfuse-terraform-aws’s past year of commit activity
    HCL 49 MIT 30 12 0 Updated Jan 23, 2026
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